Hi,

I'm currently a student and still learning the software. I have developed a design but the draft angles show problems if it were to be casted getting it out the mold. is there a way to quick fix this? plus what does it all mean, I know yellow is the areas that need addressing but it is all a little confusing especially where there is a cut extrude circle through the top, how would I fix that do I need to loft everything?

I am basically looking for help because i know changing one thing will most likely mean several other features will fail, thus causing me to start again.

Thanks